The XenServer Host Power On feature allows you to manually turn a remote host (server) on and off. To use this feature, you need to carry out the following steps:
Once Host Power On has been configured on a server, you will be able to power the server on from XenCenter by selecting it and then, on the Server menu, clicking Power On.
If you have Workload Balancing installed and configured, you can also configure XenServer to turn hosts on and off automatically as VMs are consolidated or brought back online. This feature is known as Power Management. Both Workload Balancing and Power Management are only available in XenServer Enterprise Edition or higher.
To enable the Host Power On feature, the host server must have one of the following power control solutions:
You can enable Host Power On for an individual host server via the host's Properties window, or on multiple servers via the pool's Properties window.
|Disabled||Select this option to turn off the Host Power On feature.|
|Wake-on-LAN (WoL)||To use this option, the host must have a Wake on LAN-enabled network card.|
|HP Integrated Light-Out (iLO)||To use this option, iLO must be enabled on the host and be connected to the network. For more information, see HP's iLO documentation.|
|Dell Remote Access Controller (DRAC)||To use this option, the Dell supplemental pack must be installed on the host server to get DRAC support. For more information, see Dell's DRAC documentation.|
|Custom power-on script||You can use a custom Python Linux script to turn on the power on a XenServer host from a remote location. For information about creating the script, including a list of supported key/value pairs, see the XenServer Administrator's Guide.|
|IP Address||The IP address you specified configured to communicate with the power-control card. Alternatively, you can enter the domain name for the network interface where iLO or DRAC is configured.|
|User name||This is the iLO or DRAC user name that is associated with the management processor, which you may or may not have changed from its factory default settings.|
|Password||This is the password associated with that user name.|
You do not need to specify the .py extension when you specify the filename of the custom script.
After configuration, you can configure and run the Workload Balancing Automation and Host Power On features.